From 99b7023aba5c09f069badc35d05ea3ef53f3a6d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Magdalena=20Grodzi=C5=84ska?= <mag.grodzinska@gmail.com>
Date: Tue, 14 Jan 2020 20:30:22 +0100
Subject: Add query uninstall calls

---
 .../cloudatlas/agent/NewApiImplementation.java     |  5 ++--
 .../querysigner/QuerySignerApiImplementation.java  | 32 ++++++++++++++--------
 2 files changed, 24 insertions(+), 13 deletions(-)

(limited to 'src/main')

diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/NewApiImplementation.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/NewApiImplementation.java
index a2ac358..affad86 100644
--- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/NewApiImplementation.java
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/NewApiImplementation.java
@@ -38,7 +38,7 @@ public class NewApiImplementation implements Api {
                 StateMessage stateMessage = (StateMessage) response;
                 Set<String> zones = new HashSet<String>();
                 collectZoneNames(stateMessage.getZMI(), zones);
-                return zones;
+                return zones;   
             } else {
                 System.out.println("ERROR: getZoneSet didn't receive a StateMessage");
                 throw new Exception("Failed to retrieve zone set");
@@ -92,8 +92,9 @@ public class NewApiImplementation implements Api {
     }
 
     public void uninstallQuery(String queryName, QueryData query) throws RemoteException {
-        QueryUtils.validateQueryName(queryName);
         try {
+            QueryUtils.validateQueryName(queryName);
+            QuerySignerApiImplementation.validateUninstallQuery(queryName, query, this.publicKey);
             Attribute attributeName = new Attribute(queryName);
             ValueTime timestamp = new ValueTime(System.currentTimeMillis());
             Map<Attribute, Entry<ValueQuery, ValueTime>> queries = new HashMap();
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/querysigner/QuerySignerApiImplementation.java b/src/main/java/pl/edu/mimuw/cloudatlas/querysigner/QuerySignerApiImplementation.java
index 3acaacf..3ab2931 100644
--- a/src/main/java/pl/edu/mimuw/cloudatlas/querysigner/QuerySignerApiImplementation.java
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/querysigner/QuerySignerApiImplementation.java
@@ -75,16 +75,19 @@ public class QuerySignerApiImplementation implements QuerySignerApi {
         return digest;
     }
 
-    private static byte[] serializeQuery(String queryName, String queryCode) {
+    private static byte[] serializeQuery(String queryName, String queryCode, Boolean install) {
         ByteSerializer byteSerializer = new ByteSerializer();
-        return byteSerializer.serialize(queryName + queryCode);
+        if (install) {
+            return byteSerializer.serialize(queryName + queryCode + install.toString());
+        } else {
+            return byteSerializer.serialize(queryName + install.toString());
+        }
     }
 
-    @Override
-    public QueryData signInstallQuery(String queryName, String queryCode) throws RemoteException {
+    private QueryData signQuery(String queryName, String queryCode, Boolean install) throws RemoteException {
         QueryUtils.validateQueryName(queryName);
         try {
-            byte[] serializedQuery = serializeQuery(queryName, queryCode);
+            byte[] serializedQuery = serializeQuery(queryName, queryCode, install);
             byte[] hashedQuery = cryptographicHash(serializedQuery);
             byte[] querySignature = encryptQuery(hashedQuery);
             return new QueryData(queryCode, querySignature);
@@ -94,10 +97,19 @@ public class QuerySignerApiImplementation implements QuerySignerApi {
         }
     }
 
+    @Override
+    public QueryData signInstallQuery(String queryName, String queryCode) throws RemoteException {
+        return signQuery(queryName, queryCode, true);
+    }
+
     public static void validateInstallQuery(String queryName, QueryData query, PublicKey publicKey) throws RemoteException,IllegalBlockSizeException, InvalidKeyException, BadPaddingException, NoSuchAlgorithmException, NoSuchPaddingException, QuerySigner.InvalidQueryException {
+        validateQuery(queryName, query, publicKey, true);
+    }
+
+    public static void validateQuery(String queryName, QueryData query, PublicKey publicKey, boolean install) throws RemoteException,IllegalBlockSizeException, InvalidKeyException, BadPaddingException, NoSuchAlgorithmException, NoSuchPaddingException, QuerySigner.InvalidQueryException {
         QueryUtils.validateQueryName(queryName);
         byte[] decryptedQuery = decryptQuery(query.getSignature(), publicKey);
-        byte[] serializedQuery = serializeQuery(queryName, query.getCode());
+        byte[] serializedQuery = serializeQuery(queryName, query.getCode(), install);
         byte[] hashedSerializedQuery = cryptographicHash(serializedQuery);
         String decryptedQueryString = byteArrayToString(decryptedQuery, 0, decryptedQuery.length);
         String hashedSerializedQueryString = byteArrayToString(hashedSerializedQuery, 0, hashedSerializedQuery.length);
@@ -106,14 +118,12 @@ public class QuerySignerApiImplementation implements QuerySignerApi {
         }
     }
 
-    // TODO
     @Override
     public QueryData signUninstallQuery(String queryName) throws RemoteException {
-        return null;
+        return signQuery(queryName, "", false);
     }
 
-    // TODO
-    public static void validateUninstallQuery(String queryName, QueryData query, PublicKey publicKey) throws RemoteException {
-
+    public static void validateUninstallQuery(String queryName, QueryData query, PublicKey publicKey) throws RemoteException, NoSuchAlgorithmException, IllegalBlockSizeException, BadPaddingException, QuerySigner.InvalidQueryException, NoSuchPaddingException, InvalidKeyException {
+        validateQuery(queryName, query, publicKey, false);
     }
 }
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